21709800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{1723}}^1$

素因数の和:1752

約数の個数: 144

約数和(自身を含む): 83372640

約数和(自身を除く): 61662840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1723, 1800, 2100, 2520, 3150, 3446, 4200, 5169, 6300, 6892, 8615, 10338, 12061, 12600, 13784, 15507, 17230, 20676, 24122, 25845, 31014, 34460, 36183, 41352, 43075, 48244, 51690, 60305, 62028, 68920, 72366, 77535, 86150, 96488, 103380, 108549, 120610, 124056, 129225, 144732, 155070, 172300, 180915, 206760, 217098, 241220, 258450, 289464, 301525, 310140, 344600, 361830, 387675, 434196, 482440, 516900, 542745, 603050, 620280, 723660, 775350, 868392, 904575, 1033800, 1085490, 1206100, 1447320, 1550700, 1809150, 2170980, 2412200, 2713725, 3101400, 3618300, 4341960, 5427450, 7236600, 10854900, 21709800]

約数ペア:

[(1, 21709800), (2, 10854900), (3, 7236600), (4, 5427450), (5, 4341960), (6, 3618300), (7, 3101400), (8, 2713725), (9, 2412200), (10, 2170980), (12, 1809150), (14, 1550700), (15, 1447320), (18, 1206100), (20, 1085490), (21, 1033800), (24, 904575), (25, 868392), (28, 775350), (30, 723660), (35, 620280), (36, 603050), (40, 542745), (42, 516900), (45, 482440), (50, 434196), (56, 387675), (60, 361830), (63, 344600), (70, 310140), (72, 301525), (75, 289464), (84, 258450), (90, 241220), (100, 217098), (105, 206760), (120, 180915), (126, 172300), (140, 155070), (150, 144732), (168, 129225), (175, 124056), (180, 120610), (200, 108549), (210, 103380), (225, 96488), (252, 86150), (280, 77535), (300, 72366), (315, 68920), (350, 62028), (360, 60305), (420, 51690), (450, 48244), (504, 43075), (525, 41352), (600, 36183), (630, 34460), (700, 31014), (840, 25845), (900, 24122), (1050, 20676), (1260, 17230), (1400, 15507), (1575, 13784), (1723, 12600), (1800, 12061), (2100, 10338), (2520, 8615), (3150, 6892), (3446, 6300), (4200, 5169)]